Birdcage attachment



FIG. 1 is a perspective view of a birdcage attachment with the perch ina lower position;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a slightly enlarged top view thereof;

FIG. 7 is a slightly enlarged bottom view thereof;

FIG. 8 is a further perspective view showing the perch in a higherposition;

FIG. 9 is a front view thereof;

FIG. 10 is a rear view thereof;

FIG. 11 is a left side view thereof;

FIG. 12 is a right side view thereof;

FIG. 13 is a slightly enlarged top view thereof; and,

FIG. 14 is a slightly enlarged bottom view thereof.

The portions of the designs that are shown in broken lines do not formpart of the claimed design.

We claim the ornamental design for a birdcage attachment, as shown anddescribed.